The biggest thing i noticed about the sound is that theres no rasp man. Theres a little hiss at 2000 rpm but idk if that will ever go away with tp's. but it probably sounded similar with your hfcs id imagine. Now your turbo will sound mean!
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370z NISMO 0675 327 rwhp 280 rwtq - sold.
FD RX7 single turbo 508hp - sold.
Lexus IS-F 5.0L V8 
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